xref: /freebsd/usr.sbin/bsnmpd/modules/snmp_netgraph/snmp_netgraph.h (revision a90b9d0159070121c221b966469c3e36d912bf82)
1 /*
2  * Copyright (c) 2001-2003
3  *	Fraunhofer Institute for Open Communication Systems (FhG Fokus).
4  *	All rights reserved.
5  *
6  * Author: Harti Brandt <harti@freebsd.org>
7  *
8  * Redistribution of this software and documentation and use in source and
9  * binary forms, with or without modification, are permitted provided that
10  * the following conditions are met:
11  *
12  * 1. Redistributions of source code or documentation must retain the above
13  *    copyright notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE AND DOCUMENTATION IS PROVIDED BY FRAUNHOFER FOKUS
19  * AND ITS CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
20  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
21  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
22  * FRAUNHOFER FOKUS OR ITS CONTRIBUTORS  BE LIABLE FOR ANY DIRECT, INDIRECT,
23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
25  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
26  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
27  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
28  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  *
30  * Netgraph interface for SNMPd. Exported stuff.
31  */
32 #ifndef SNMP_NETGRAPH_H_
33 #define SNMP_NETGRAPH_H_
34 
35 #include <netgraph/ng_message.h>
36 
37 extern ng_ID_t	snmp_node;
38 extern u_char *snmp_nodename;
39 
40 typedef void ng_cookie_f(const struct ng_mesg *, const char *, ng_ID_t, void *);
41 typedef void ng_hook_f(const char *, const u_char *, size_t, void *);
42 
43 void *ng_register_cookie(const struct lmodule *, u_int32_t cookie,
44     ng_ID_t, ng_cookie_f *, void *);
45 void ng_unregister_cookie(void *reg);
46 
47 void *ng_register_hook(const struct lmodule *, const char *,
48     ng_hook_f *, void *);
49 void ng_unregister_hook(void *reg);
50 
51 void ng_unregister_module(const struct lmodule *);
52 
53 int ng_output(const char *path, u_int cookie, u_int opcode,
54     const void *arg, size_t arglen);
55 int ng_output_node(const char *node, u_int cookie, u_int opcode,
56     const void *arg, size_t arglen);
57 int ng_output_id(ng_ID_t node, u_int cookie, u_int opcode,
58     const void *arg, size_t arglen);
59 
60 struct ng_mesg *ng_dialog(const char *path, u_int cookie, u_int opcode,
61     const void *arg, size_t arglen);
62 struct ng_mesg *ng_dialog_node(const char *node, u_int cookie, u_int opcode,
63     const void *arg, size_t arglen);
64 struct ng_mesg *ng_dialog_id(ng_ID_t id, u_int cookie, u_int opcode,
65     const void *arg, size_t arglen);
66 
67 int ng_send_data(const char *hook, const void *sndbuf, size_t sndlen);
68 
69 ng_ID_t ng_mkpeer_id(ng_ID_t, const char *name, const char *type,
70     const char *hook, const char *peerhook);
71 int ng_connect_node(const char *node, const char *ourhook, const char *peerhook);
72 int ng_connect_id(ng_ID_t id, const char *ourhook, const char *peerhook);
73 int ng_connect2_id(ng_ID_t id, ng_ID_t peer, const char *ourhook,
74     const char *peerhook);
75 int ng_connect2_tee_id(ng_ID_t id, ng_ID_t peer, const char *ourhook,
76     const char *peerhook);
77 int ng_rmhook(const char *ourhook);
78 int ng_rmhook_id(ng_ID_t, const char *);
79 int ng_rmhook_tee_id(ng_ID_t, const char *);
80 int ng_shutdown_id(ng_ID_t);
81 
82 ng_ID_t ng_next_node_id(ng_ID_t node, const char *type, const char *hook);
83 ng_ID_t ng_node_id(const char *path);
84 ng_ID_t ng_node_id_node(const char *node);
85 ng_ID_t ng_node_name(ng_ID_t, char *);
86 ng_ID_t ng_node_type(ng_ID_t, char *);
87 int ng_peer_hook_id(ng_ID_t, const char *, char *);
88 
89 #endif
90